Surname 성호 (성호 
, Seongho 
, Sung-Ho 
) , in all the world, is a rare cognomen. The surname 성호 is characteristic of South Korea, where it is a rare surname, China, where it is an extremely rare surname, and Chile. In absolute terms, the name is most common in South Korea, China, and the United States. Much more prevalently, 성호 is the forename as well as the last name.